塔里木盆地东北部上震旦统—下古生界经历了漫长的沉积演化过程，是一套巨厚的以碎屑岩为主的沉积。根据该区露头、地震资料，结合钻井信息，应用层序地层学理论，对该套地层的沉积演化史进行了分析，认为该区上震旦统—下古生界存在四个不整合面和二个可能的不整合界面，据此可将这套地层划分出５个三级层序，４套完整的生、储、盖组合 The Upper Sinian-Lower Paleozoic in the northeastern Tarim Basin has undergone a long process of sedimentary evolution and is a massive set of clastic sedimentary deposits. According to the outcrop and seismic data in this area, combined with the drilling information and the theory of sequence stratigraphy, the sedimentary evolution history of this formation is analyzed. There are four unconformities in the Upper Sinian - Lower Paleozoic Two possible unconformities interface, according to which the strata can be divided into five third-order, four complete sets of raw, storage, cover